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Science & Alternative Science / Re: Do rockets push off the air?
« on: Today at 01:26:30 AM »The exhausted gas is part of the rocket. A rocket is a closed system.If you want to consider a rocket to be a closed system, then you must not ignore conservation of momentum. If the exhaust is being accelerated one way, then the rest of the rocket must be accelerated the opposite way in order for momentum to be conserved. That is, unless you think that accelerating rocket exhaust doesn't exhibit momentum.
Gas, when released to vacuum, performs 0 work.True, but irrelevant. All of the relevant work is done inside the rocket engine, before the exhaust is released into the vacuum.